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990719 is a prime number
BaseRepresentation
bin11110001110111111111
31212100000022
43301313333
5223200334
633122355
711264252
oct3616777
91770008
10990719
11617384
123b93bb
13288c32
141bb099
1514882e
hexf1dff

990719 has 2 divisors, whose sum is σ = 990720. Its totient is φ = 990718.

The previous prime is 990707. The next prime is 990733. The reversal of 990719 is 917099.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 990719 - 28 = 990463 is a prime.

It is a super-2 number, since 2×9907192 = 1963048273922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 990719.

It is not a weakly prime, because it can be changed into another prime (990799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 495359 + 495360.

It is an arithmetic number, because the mean of its divisors is an integer number (495360).

2990719 is an apocalyptic number.

990719 is a deficient number, since it is larger than the sum of its proper divisors (1).

990719 is an equidigital number, since it uses as much as digits as its factorization.

990719 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5103, while the sum is 35.

The square root of 990719 is about 995.3486826233. The cubic root of 990719 is about 99.6896712904.

The spelling of 990719 in words is "nine hundred ninety thousand, seven hundred nineteen".